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Finding the Fourth Proportional to 106,400.55, 146,831.17 and 58,652.87

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Solution

The fourth proportional to 106,400.55, 146,831.17 and 58,652.87 is: 80,940.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,400.55 : 146,831.17 = 58,652.87 : x
  2. Step 2: Convert to fraction form
    106,400.55/146,831.17 = 58,652.87/x
  3. Step 3: Cross multiply
    106,400.55x = 146,831.17 × 58,652.87
  4. Step 4: Simplify right side
    106,400.55x = 8,612,069,525.96
  5. Step 5: Solve for x
    x = 8,612,069,525.96/106,400.55
  6. Step 6: Final answer
    x = 80,940.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.